This page covers 3 recalls and EPA fuel economy for the 2023 Mercedes-Benz Eqs 450 4matic.
103 MPGe combined
Large Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted.
The 2023 Mercedes-Benz EQS 450 4MATIC has 3 recalls, the most serious involving the high-voltage battery management software, which can cut drive power without warning and raise the risk of a crash.
A second recall affects vehicles that received a prior repair under an earlier campaign: the replacement fuse box installed during that service may not be the correct unit for this vehicle. An incompatible fuse box can cause a sudden loss of drive power, or knock out critical systems including the airbags and instrument cluster, leaving the driver without warning indicators in a situation where both are needed. On the pedestrian safety side, a software error in the acoustic vehicle alerting system can cause the car to emit the wrong external warning sound while reversing. Because electric vehicles run silently at low speed, that alert tone is what pedestrians nearby rely on to know the car is moving, and an incorrect sound may not register as a vehicle warning at all.
At a glance
What can fail
The acoustic warning system software may produce an incorrect external pedestrian warning sound when reversing, failing to meet federal sound requirements.
What the fix does
Dealers will update the acoustic warning system software at no cost to you.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
An incorrect fuse box not designed for your vehicle may have been installed during a previous repair, potentially causing electrical system failures.
What the fix does
Dealers will inspect and replace the main fuse boxes at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A software issue in the battery management system may cause the high-voltage battery to shut down unexpectedly, resulting in sudden loss of driving power.
What the fix does
Dealers will update the battery management system software at no cost to restore normal operation.
Summarized — see the official notice for exact wording, dates, and contacts.
